The decision from NATO comes as Putin moved missile systems and troops into the Kaliningrad oblast, which borders Poland and Lithuania. The outcrop of Russian territory is a relic of the Soviet Union and is seperated from the rest of Russia by other Baltic states.

Around 4,000 Nato troops have been placed across Poland, Latvia, Lithuania and Estonia.

4,000 NATO troops take part in Lithuania’s largest exercise near Russia’s border Mon, November 28, 2016

Eleven NATO countries have sent 4,000 troops to Lithuania, the largest Baltic nation, to participate in this year’s Iron Sword exercises. The war games are meant to test the country’s ability to rapidly deploy a large number of troops.